Filter.



L. D. VAN VALKENBURG.

FILTER.

APPLICATION FILEDJAN. 18, 1912.

1,0413 1 5. Patented Oct. 22, 1912.

" A TTORNEY.

LEVI D. VAN VALKENBURG, OF HOLYOKE, MASSACHUSETTS.

FILTER.

Specification of Letters Patent Patented Oct. 22, 1912.

Application filed January 18, 1912. Serial No. 671,904. I

To all whom it may concern Be it known that I, LEVI D. VAN VALKEN- nuns,a citizen of the United States of America, and resident of Holyoke, inthe county of Hampden and State of Massa chusetts, have invented certainnew and useful Improvements in Filters, of which the following is afull, clear, and exact description.

This ,invention relates-to improvements in small filtering devices ofa'kind whichare adapted for a screw connection .with a faucet.

An object of the invention is to provide.

improved means of construction whereby an eflicient filtering device maybe produced by simple and inexpensive construction.

Another object is to provide means, opera tive externally of the filter,whereby the screen-frame which constitutes the filtering. medium in thedevice may be overturned for half ofa revolution so as to be selfclearing of sediment or impurities collected thereon.

Another object is to provide means where by in the semi-revolublemovements of the screen-frame the'latter will be held in itspositionsquarely across the passage through the filter body. v

Another object is to so construct and combine the parts that leakage ofwater is prevented through the sides of the body ,or the I pointspenetrated by the transverse rotative shaft on which the screen-frame ismounted. And ,other objects are attained in and by the specialconstruct-ion of the device and parts thereof as will hereinafter berendered apparent.

The invention is described. in conjunction with the accompanyingdrawings and is set forth in the claims.

In the drawings :-Figures 1 and 2 are central vertical section's of-thefilter on an enlarged scale as taken on planes at right angles to eachother, these views showing reversals of the position of thescreen-frame. Fig. 3 is an elevation at the side of the filter atwhichthe screen operating handle is lo.- cated. Figretis a horizontal crosssectional view on line 4-4, Fig. 2. Fig. 5 is a still further enlargedsectional view showing the construction of the screen frame.

Similarcharacters of reference indicate corresponding parts in allof theviews.

In the drawings. A represents the filter body which is made of tubularform, internally screw threaded at its upper end and having the openingthereof somewhat contractedto form an approved delivery nozzle. Brepresents the screen frame, and C the shaft by which it is carried, andwhich shaft is transversly journaled through-an intermediate portion ofthe tubular body. The said shaft for almost the entire length thereof isof a square or equivalent polygonal form, and the holes a a through theopposite sides of the tubular body are round and of diameter suflicientto permit of the rotation of the shaft in its bearings therethrough. V

The screen frame which performs the filtering of the water passingthrough the device consists of a ring 6 made with a seat or ledge d andwith an integral portion having its location outwardly beyond the ledgeformed thinner than the ring proper to produce an annularllip f; and thescreen or gauze g resting on the ledge and confined thereon by angularlyturning the lip as clearly shown in Fig. 5. The ring of the screen framehas diametrically opposite square holes h It therethrough, through whichthe square shaft is engaged.

The holes a a in the opposite sides of the body are surrounded at theirouter ends by countersunk depressions 2'- i in which polygonallyapertured disks y j are set, said disks being penetrated by portions ofthe shaft C which closely fit through them, so that while such disksform closures against leakage through the opposite shaft bearing holes aa, they rotate as one with the shaft and prevent no obstruction to themovements of the latter.

The shaft has a handle member D at one end, the inner portion ofwhich,that lying in proximity to the side of the filter body,- is of theform of a blade or fin and the portion of the filter body next. outsideof the disk j hasa depression or niche is which is radial to the axis ofthe handle provided shaft, so that the inner blade like edge of theshaft handle may have a detent engage inent therein for preventing thetilting of the screen frame away from its position as a filteringpartition squarely across the passage through the filter body, exceptingwhen the shaft is purposely rocked through means of the handle The shafton its end opposite the handle has screw threads cut thereon with whichengages a bonnet or knob F made with a chamber at opening to its innerend while within the wall cl0sing its outer end is a" screw tappedsocket of smaller diameter than the chamber, and leading endwise fromthe latter. A helical spring I? encircles the end portion of the shaftand is inclosed, practically concealed and held in compression by thechambered screw knob or bonnet. As the construction is viewed in Fig.the spring reacting on the shaft in a direction to the leftward,

forces the blade shaped handle firmly against the right hand disk j,keeping the latter closely seated in the depression 1' therefor, suchspring force being also effective for maintaining the inner blade likeportion of the handle engagedin the shallow radial. niche is, and thespring in its direct reaction against the little left hand disk holdsthat one closely seated in the circular depression therefor. Theconstruction is such that a slight endwise movement of the shaft ispermitted diametrically of the filter body, and relatively to the screenframe when the shaft is to be rotated for overturning the screen frameso that the disengagement of the inner edge portion of the handle in theradial niche is permitted.

Although the circular holes a a through the opposite sides of the filterbody are not entirely filled by the portions of the squared shaft whichpass therethrough, the disks 1' 3' having the square openings tightlyfitted by the shaftconstitute ample means of closure against the passage0f water later-v And as ally from the filter body assage. may beerceived, the entlre device is constituted ysev'en parts, all of whichare of extremely simple form and susceptible of production at low cost,and easy of assemblage,the seven parts consigting'of the tubular filterbody, the strainer frame, the shaft, the pair of' pol gonally apertureddisks, the spring and the bonnet.

I claim 1. In a device of the character described,

in combination, a tubular body having diametrically o posed axiallyh0riz0ntal jdurnal holes erethrough with countersunk depressions-atrtheir. outer ends, a screen frame within the body havingalinedp'olygonal openings therethrough, a polygonal shaft engagedthrough the screen frame, polygonally aperturcd disks through which theshaft is engaged and which are disposed in said circular depressions,thesaid shaft having a handle enlargement at one end in engagement againstone of the disks, and means operative on the shaft for bolding it withits handle member in engagement with one of said disks.

2. In a device of the character described, in combination. a tubularbody having diametrically opposed axially horizontal journal holestherclhrough with countersunk depressions at their outer ends, andhaving a further depression radially relatively to one of thecountersunk depressions, a polygonal shaft and a screen frame havingopenings corresponding to the cross sectional shape of the shaft andthrough which the latter is engaged. polygonally apertured disks throughwhich the shaft is engaged and which are disposed in said circulardepresshms,-thc said shaft having a handle at one eu-zi made with ablade shaped portion for engagement in and radial depression and aspring exerting an endwise force to the shaft for yieldingly maintaininthe blade-like portion of the handle in said depression.

3. In a device of the character described, a tubular body havingdiametrically opposed journal holes therethrough and a depressionadjacent and radial to one of said holes on the outer side of the body,a shaft extending transversely of the. body through said holes having atone end a handle provided with a blade-like portion for engagement insaid radial depression and having its oppositcend screw threaded, ascreen frame within the casing mounted on said shaft, an internallychambered bonnet engaging on the threaded extremity of the shaft andhaving a spring inclosed and in reaction therein between the side of theeasing and the wall of the chamber in such bonnet.

4. In} device of the character described, a tubular body constructed forattachmenton a faucet, a shaft transversely rotatively mounted in thebody and a screen frame carried by said shaft within the casing andconsisting of a ring made with a seat or ledge and an integral portionof such rin outwardly beyond such ledge forme thinner than the ringproper to produce an annular lip, a screen resting on said ledge andconfined thereon by the angularly turning of said lip, and meansexternally of the casing for rotatively moving said shaft.

5. In a device of the character described, in combination, a tubularbody constructed for attachment on a faucet, a shaft, transversely androtatively journaled through an intermediate portion of the bodycarrying I ment of the shaft from the screen frame and a. screen-frametherein and having at one i from the body. 0 of its extremities ashoulder in sidewise eni Signed by me at Springfield, Mass, in gagementagainst the body, and a bundle presence of two subscribing witnesses.member adjacent the body, provided at its LEVI D. VAN VALKENBURG. otherend with spring means for drawing Witnesses:

the shoulder against the body, and detach- WM. 8.. BELLOWS,

able means for preventing the disengage- G. R. DRISCOLL.

